Kingdom Hearts is a video game which follows the story of Sora, Riku, and Kairi who are separated after a violent storm hits their home. At the same time turmoil in Disney Castle begins when King Mickey goes missing. Court Wizard Donald and Captain Goofy set out to find him and along their travels they meet Sora who is also on his own search for his lost friends. It's discovered that creatures known as Heartless - beings without hearts derived from an unknown dimension - are responsible for the devastating storm as well as being manipulated by Disney villains. With help from familiar Disney heroes, Sora, Donald and Goofy join forces to save everyone's worlds.

Kingdom Hearts: Chain of Memories is an action role-playing video game released by Square Enix in 2004. Players control Sora, Donald and Goofy as they search for their missing companions across many vast and colorful worlds. This game sets the stage for Kingdom Hearts II, which follows a similar story line with new characters and gameplay elements. The game features card-based battle system mechanics that allow players to customize their decks with attack cards, special moves and defense mechanisms such as "Reaction Commands". With its gripping storyline and unique battle system, Kingdom Hearts: Chain of Memories provides hours of entertainment for fans of the series.

Kingdom Hearts 358/2 Days is a video game that follows the story of Roxas, an important character from Kingdom Hearts II. Players join Roxas, his friend Axel and the mysterious fourteenth member of Organization XIII on a journey across various vibrant worlds full of beloved characters from Square Enix and Disney franchises. The game also features a series-first multiplayer mode which allows up to four players to control any member of Organization XIII and take on missions together. As they progress through their adventure, players will uncover secrets related to Sora's heart being released in the process when he turns the Keyblade upon himself, as well as mysteries surrounding Roxas' identity and connection with Sora, ultimately leading them to unravel one of Kingdom Heart saga's most shocking revelations.